GB377430A
(enrdf_load_stackoverflow )
US2139718A
(en )
1938-12-13
Cash register
US1832791A
(en )
1931-11-17
Calculating machine
US1132711A
(en )
1915-03-23
Registering mechanism.
US2261341A
(en )
1941-11-04
Adding and listing machine
GB650357A
(en )
1951-02-21
Differential setting mechanism for cash registers or similar accounting machines
GB438369A
(enrdf_load_stackoverflow )
GB612392A
(en )
1948-11-11
Improvements in or relating to accounting machines and similar calculating machines
Turck
1921
Origin of Modern Calculating Machines: A Chronicle of the Evolution of the Principles that Form the Generic Make-Up of the Modern Calculating Machine
US2392515A
(en )
1946-01-08
anschotz etal
US1561870A
(en )
1925-11-17
Word-counting attachment for typewriters
US1868062A
(en )
1932-07-19
Computing machine
US1837599A
(en )
1931-12-22
And lawrence
US1380792A
(en )
1921-06-07
Calculating-machine
GB509042A
(enrdf_load_stackoverflow )
GB190525478A
(en )
1906-05-10
Improvements in Counting or Totalising Apparatus.
GB207858A
(enrdf_load_stackoverflow )
GB190401286A
(en )
1904-05-12
Improvements in Computing and Recording Machines.
GB516693A
(enrdf_load_stackoverflow )
GB611539A
(en )
1948-11-01
Improvements in or relating to cash registers and similar accounting machines
GB783849A
(enrdf_load_stackoverflow )
GB526446A
(en )
1940-09-18
Improvements in and relating to cash registers
GB189719013A
(en )
1898-07-23
Improvements in or relating to Cash Registers or Indicators and Check Tills.
GB497640A
(enrdf_load_stackoverflow )
GB737050A
(en )
1955-09-21
Computing machine